DarkKnight96, on 12 March 2015 - 02:53 PM, said:
Turning off my anti-virus for a moment solved it for me
dont have a Anti virus, UAC off aswell, redownloading it almost done and we will see again! =D
Deleting everything from the UPDATES map in your WOW directory and redownloading the game and then the update worked for me!